                    &\multicolumn{1}{c}{(1)}&\multicolumn{1}{c}{(2)}&\multicolumn{1}{c}{(3)}&\multicolumn{1}{c}{(4)}&\multicolumn{1}{c}{(5)}&\multicolumn{1}{c}{(6)}\\
                    &\multicolumn{1}{c}{15 second}&\multicolumn{1}{c}{30 second}&\multicolumn{1}{c}{1 min}&\multicolumn{1}{c}{3 min}&\multicolumn{1}{c}{5 min}&\multicolumn{1}{c}{10 min}\\
\hline
Marginal Benefit    &      0.0137\sym{***}&     0.00384\sym{***}&     0.00144\sym{***}&    0.000362         &    0.000514\sym{***}&    0.000535\sym{*}  \\
                    &   (0.00140)         &   (0.00101)         &  (0.000101)         &  (0.000200)         & (0.0000735)         &  (0.000235)         \\
\hline
Marginal Cost       &      0.0720\sym{***}&      0.0462\sym{***}&      0.0172\sym{***}&     0.00343\sym{***}&     0.00126\sym{***}&    0.000296\sym{***}\\
                    &   (0.00132)         &  (0.000355)         & (0.0000733)         & (0.0000688)         & (0.0000259)         & (0.0000453)         \\
\hline
Observations        &       34208         &       41156         &      224198         &      121862         &      229328         &       49956         \\
One-sided p-value   &           1         &           1         &           1         &           1         &           1         &       0.159         \\
First stage F-statistic&       999.6         &      1660.0         &     22708.9         &      2844.5         &      8243.5         &       323.9         \\
